Water-operated pump.



e A. WENDT.

Patented Dec. 12, 1916.

3 SHEETS-SHEET l.

ERS co.. PNOTUJJYNDH wAsnmcmu, o c- G. A. WENDT.

WATER OPERATED PUMP.

APPLICATION FILED N0v.24, 1914;

3 SHEETS-SHEET 2.

Patented Dec. 12, 1916.

G. A. WENDT.

WATER OPERATED PUMP.

APPLICATION FILED NOV. 24, 3914.

Patented Dec. 12, 1916.

3 SHEETS-SHEET 3- GUSTAV A. WENDT, OF SPOKANE, WASHINGTON.

WATER-OPERATED PUMP.

Application filed November 24, 1914:.

To all whom it may concern Be it known that I, GUSTAV A. VVENDT, a citizen of the United States, residing at Spokane, in the county of Spokane and State of Washington, have invented certain new and useful Improvements in ater- Operated Pumps, of which the following is a specification.

The object of this invention is to provide a water operated pump, whereby a stream of water may be utilized both as an operating and a supply fluid.

My invention includes water buckets which are connected to alternately move into filling and emptying positions, and which are so operatively connected with the pumps as to cause the latter to pump a portion of the water which is utilized to operate the bucket.

A further object of the invention is to so control the pumped water that the latter will act in connection with the pumps to control the movement ofthe buckets, so that a partially filled bucket occupying a filling position cannot over-balance and raise its companion bucket, which is occupying an emptying position.

My invention also includes improved trip mechanism and valves for controlling the pumped water, in connection with the pumps, for controlling movement of the buckets.

Other features and objects of the invention will be more fully described in connection with the accompanying drawings, andwill be more particularly pointed out in and by the appended claims.

In the draw1ngs:F1gure 1 1s a view in elevation, partly in section, illustrating one embodiment of my invention. Fig. 2 is an end view thereof. Fig. 3 is an enlarged sectional view on line 88 of Fig. 1. Fig. 4 is an enlarged view of a valve operating mechanism showing the same in one position. Fig. 5 is a view similar to Fig. 4, showing the parts in another position. Fig. 6 is a sectional view of a trip member. Fig. 7 is a sectional view of a controlling valve showing the same in an open position. Fig. 8 is a view. similar to Fig. 7, showing the valve in a closed position.

Like characters of reference designate similar parts throughout the different figures of the drawings.

I have illustrated a frame-work compris- Specification of Letters Patent.

Patented Dec; 12, 1916..

Serial No. 873,740.

ing a base 1 having uprights 2 and 3 011 which a platform or supporting beams a are mounted. The supporting beams 4: are secured to upper horizontals 5 and the frame-work is connected by upper end transverse members 6. On the base 1 are disposed receiving basins 7, each of which is provided with a valve operating member 8 which is yieldably supported by a spring 9. Upon the frame structure is disposed a reservoir 10 to which a stream or like source 11 delivers through a suitable conduit 12. The reservoir 10 is provided with valves 13 which are adapted to be opened upwardly for egress of the water downwardly to buckets which will presently be described. The valves 13 are provided with valve stems lat which. are adapted to be actuated by suitable buffers on the buckets.

Buckets are indicated at 15 and 16 and they are shown provided with valve operating buffers 17 and 18 for operating the valves 13 alternately. The buckets are also provided with egress valves 19 and 20, which are adapted to be elevated by members 8 for discharge of the water from the buckets into the basins 7, the discharge from the latter not being a feature of the invention. By reference to Fig. 2, it will be seen that there are a plurality of valves 13 and a series of valves 19 in order to get proper speed of egress.

The buckets 15 and 16 are pivotally mounted at 21, 22 and 23, 24. to the ends of bucket supporting levers 25 and 26, there being a pair of levers on each side of the bucket. Each pair of levers is pivoted at 27 and 28 to central upright frame members 2.

It will thus be seen that the levers not only support but they connect the buckets in such a manner that when one descends to an emptying position the other will ascend to a filling position with respect to the reservoir and the basins. Furthermore, by reason of the fact that pairs of levers are employed, the buckets will be prevented from tilting freely about their pivotal mountings and will be held to fixed paths of movement so as to insure accuracy of operation of valves 13, 19 and 20.

Pump cylinders 29 and 30 are fixed in upright positions to the framework, as illustrated, and pistons 31 and 32 are reciprocable in said cylinders for induction and discharge of the water. Pump piston 31 is provided with a piston rod 33 which is connected with operating bucket 15 at the pivotal connection 22 of supporting member 25. Pump piston 32 is provided with a pump rod 34, which is operatively connected withbucket 16 at the pivotal connection 23, of said bucket with lever 25. Thus it will be seen that the pump pistons have direct connection with the operating buckets so that the most efiicient action of the pistons can be obtained. Pump cylinder 29 has an intake pipe 35 which opens into reservoir 10 and delivers to cylinder 29. A non-return valve 36 is interposed in intake pipe 35 so as to prevent return of the water therein to reservoir 10 on the up-strokeof piston 31. Cylinder is similarly equipped with an intake pipe 37 having a non-return valve 38. Outlet or egress pipes 39 and 40 open to the cylinders 29 and 30 and are connected to a common outlet or delivery pipe 41. Pipes 39 and 40 are provided with nonreturn valves 42 and 43, respectively, for preventing movement of the water toward their respective pump cylinders. Intermediate pump cylinder 29 and non-return valve 42, is a controlling valve 44, which is shown more particularly in Figs. 7 and 8. A controlling valve 45 is likewise inter posed between cylinder 30 and non-return valve 43.

I will next describe the operating mechanism for each controlling valve, whereby the pumped water is caused to coact with the pump pistons, by means of the controlling valves. Each controlling valve includes a closure 45, One being shown in Figs. 7 and 8, and the closure of each valve is connected for operation by bell crank levers having arms 46, 47 and 48, 49. A rod 50 connects arms 47 and 48 to cause the valves or rather their closures, to operate in unison and to transmit operative move ment from one clousre to the other, this being an important feature of the invention which will presently appear.

Each controlling valve is primarily operated by a gravity acting device, and each gravity acting device is normally held tripped against action by a trip device, the trip devicesbeing operated by float devices, the latter being operated by the liquid level in the operating buckets with which they are associated. Specifically, all of these de vices are identical in construction and operation, and therefore these several devices will all be designated generally by a reference character and one device or set of devices will be specifically described, reference being had more particularly to Figs. 4 and 5.

Arm 46 is connected with an operating rod 51, at one end, and the opposite end extends through a gravity lever 52 and is provided with an enlarged head 53. Gravity lever 52 is provided with a weighted end and is pivotally mounted at 54 to a depending bracket 55. Gravity lever 52 is in the form of a bell crank lever and is pro vided with a trip arm 56 having a trip end 57. In order to prevent descent of gravity lever 52 beyond a predetermined lower position, I provide a link stop in the form of a link 58, which is pivoted to bracket 55, at 59. Link 58 is slotted at 60 and a pin 61 on arm 56 is movable in said slot.

The foregoing constitutes one of the gravity acting devices, which will be indicated at a, its counterpart device being indicated at Z) and being connected by a rod 62 with arm 49 of controlling valve 45.

A float controlled device comprises an arm 63 which is pivoted at 64 to bracket 55 and which is provided on its outer end with a float 65. A link 66 affords means for limiting downward movement of arm 63, and said link 66 is pivoted at 67 to bracket 55 and is slotted at 68. A pin 69, on arm 63, projects through slot 68, as clearly shown in Fig. 4. This float device will be designated as a whole at 0, and its counterpart will be designated as a whole at (Z.

The trip device includes a lever 70, which is pivoted at 71 to bracket and which is pivoted at 72 to a link 73, the latter being pivoted at 74 to float arm 63, whereby movement of the latter will actuate lever 70. Lever is provided with a trip finger 7 5, pivoted to lever 70, at 7 6, and normally resting upon a retainer 77 to prevent the trip finger from moving in one direction beyond a predetermined position. A spring 78 acts upon finger to normally hold the same in the position shown in Fig. 6 but to permit movement of the finger 75 away from retainer 77 for release of trip arm 56, as will presently appear. Spring 7 8 is mounted at 79 to lever 70 and the latter is suitably cavitied, at 80 to afford a mounting chamber for said finger and spring. The trip device just described will be indicated as a whole at 6, its counterpart being indicated at f.

Each gravity device is provided with a restoring means, and as shown, the same comprises a rod 81 which is pivoted at 82 to trip arm 56, at one of its ends. The remaining end of rod 81 is pivoted at 83 to an arm 84 mounted upon a rock shaft 85. Rock shaft 85 is mounted in suitable bearings 86 and 87 and is-provided with an arm 88, connected at 89, to a restoring rod 9.0. Bestoring rod 90 extends through a suitably apertured lug 91 on lever 25, and is provided with an enlarged head 92, so that when lug 91 descends, it will strike head 92 and actuate the rock shaft 85 in a manner to restore the gravity device into a position in which it will be held by its trip device. The

restoring means just described may be, desin connection with the former. 45

ignated as a whole at 9, its counterpart which is identical in construction and operation being designated at h.

I will now describe the operation of my invention. In the position shown in Fig. 1, operating bucket 15 has ascended into a filling position and has been substantially filled with water from the reservoir 10. Valve at is in the open position shown in Fig. 7 and float device 0 is about to be actuated or elevated sufliciently to raise lever 7 0 and trip finger 7 5 so as to release trip arm 56. A slightly further upward movement of float 65 will suflice to release arm 56 whereupon gravity lever 52 will descend, freely, to gain momentum, and will then engage head 53 exerting pull on rod 51 to move the closure 45 from the position shown in Fig. 7 to the closed position shown in Fig. 8. Link 58 will prevent descent of lever 52 beyond a position necessary to close valve 14. At this point, it may be stated that when valve 14: is closed, rod 50 will open valve a5. Closure of valve 4a limits upward. movement of piston 31 and outward flow through pipe 89 which has taken place by reason of upward movement of the piston 31. Descent of bucket 15 could not take place even under its weight of water, until valve 45 had been opened. Now opening of valve 455 permits piston 32 to rise and therefore the weight of the contents of bucket 15 will carry the same downwardly into an emptying position, thereby raising bucket 16 into a filling position. After the float device has been actuated to trip and release, through the trip device, the gravity device, then the parts shown in Fig. 4 will assume the position shown in Fig. 5. Now it is necessary to restore lever 52 to an upper position, as shown by the position of gravity device I), so as to permit free upward movement of rod 62, or 51, as has been described Thus as bucket 15 descends the lug 91 will strike head 92, thereby actuating the rock shaft to elevate lever 52, the trip arm 56 rocking trip linger until it has passed the finger, the latter then being returned to the position shown in Fig. 6, under the action of spring 76. As bucket 15 descends with valve 4E4: closed, the piston 31 will induce a flow through pipe 35 and check valve 36 to fill cylinder 29, and the latter will be filled when piston 31 reaches the limit of its downstroke at which time bucket 15 will likewise reach the limit of its downward movement. At the beginning of the downward movement of bucket 15, buffer 17 will release valve 18 and the latter will close by gravity, thereby shutting ofi flow into bucket 15. As bucket 15 reaches its downward limit, operating member 8 will strike valve stem 19, thereby affording egress of the water from bucket 15 into its basin 7.

vDuring descent of bucket 15 under load, empty bucket 16 will have ascended to a filling position, cylinder 30 being full of water, and the ascending piston 32 will cause the water in the cylinder to close check valve 38 and discharge through open valve 4E5, pipe 10, check valve 13 where it will be delivered through pipe 411.. While piston 32 is traveling upwardly, it will be understood that piston 31 will be traveling downwardly and that valve it is closed. Therefore, bucket 16 will be rigidly held in a filling position by reason of the liquid stop interposed between closed valve 14- and the lower piston 31. Not until the level in bucket 16 has reached a point where it will actuate float device (Z and trip gravity device b, to shift controlling valve 45 to a closed position and thereby open controlling valve 1 1-, will the piston 31 be free to raise. It will thus be seen that the operating means is locked and controlled by the pumped fluid. in such a manner that the liquid actuated means will operate in the same prescribed order as a mechanical mechanism.

It is believed that the advantages and utility of my invention will be clearly understood from the foregoing description, and while I have herein shown and described one specific form of my invention, I do not wish to be limited thereto except for such limitations as the claims may import.

I claim 1. In a pump mechanism, a pair of pumps each having an egress controlling valve, means connecting said valves to open one when the other is closed, a set of devices for each controlling valve and each set comprising a gravity device normally acting to close one alve, a trip device normally acting to prevent operation of said gravity device, a water bucket for operating each pump, and a float device for each set acted upon by the level in the operating bucket of its pump to actuate the trip device of its set and free the gravity device for closing its respective valve, substantially as described.

2. In a pump mechanism, a pair of pumps each having a controlling valve for egress therefrom, a water operating bucket for each pump, and a set of devices for each valve initiated into action by the water level in the bucket of the respective pumps, substantially as described.

3. In a pump mechanism, a pair of pumps each having a controlling valve for egress therefrom, a water operating bucket for each pump, an operating mechanism for each valve initiated into action by the water level in the bucket of the respective pump, and means connecting said controlling valves to shut off one and open the other to establish pumped liquid locks acting through the pumps to prevent movement of the operating buckets during closure of a controlling valve, substantially as described.

4. In a pump mechanism, a pair of pumps each having a controlling valve for egress therefrom, a water operating bucket device for each pump, a set of devices for each valve initiated into action by the water level in the bucket devices of the respective pumps, and means for each set of devices actuated by the bucket device of the respective pump .for restoring such set of devices to a starting position, substantially as described.

5. In a pump mechanism, a pair of pumps each having a controlling valve for egress therefrom, a water operating bucket device for each pump, a set of devices for each valve initiated into action by the water level 1 in the bucketdevice of the respective pump, means for each set of devices actuated by the respective bucket device for restoring such set of devices to a starting position, and

means connecting said controlling valves to shut off one and open the other to establish pumped liquid locks acting through the pumps to prevent movement of the operating buckets during closure of a controlling valve, substantially as described.

6. In a pump mechanism, a pair of pumps each having an egress controlling valve, a set of devices for each controlling valve and each set comprising a gravity device normally acting to close its valve, a trip device normally acting to prevent operation of its gravity device, a water bucket for operation of each pump, a float device for each set acted upon by the level in its operating bucket to actuate the trip device of its set and free the gravity device of such set for closing movement of the controlling valve of such set, and means connecting said controlling valves to open one when the other is shut olf thereby freeing the pump of the open valve for action and establishing a liquid lock preventing action of the pump whose valve is closed, substantially as described.

7. In a pump mechanism, a pair of pumps each having a controlling valve for egress therefrom, a water operating bucket for each pump, and a valve operating mechanism for each valve initiated into action by water level in the bucket of the respective pump, substantially as described.

8. In a pump mechanism, a pair of water buckets connected in counter-balanced relation to alternately rise and descend to filling and emptying positions, a basin delivering tosaid buckets, a pump drivingly connected with each bucket and each pump having an intake opening into said basin,

flopies of this patent may be obtained for and mechanism controlled by the liquid levels in said buckets and acting on the pumped liquid to control the movement of said buckets, substantially as described.

9. In a pump mechanism, a pair of pumps, a water bucket for operating each pump with said buckets connected in counter-balanced relation, and mechanism controlled by the liquid levels in said buckets and acting on the pumped liquid to control the movement of said buckets, substantially as described.

10. In a pump mechanism, a pair of water buckets connected in counter-balanced relation to alternately rise'to a filling and dcscend to an emptying position, a basin delivering to said buckets, a pair of pump oylinders each having an intake opening to said basin, pistons for said cylinders each directly connected with one of said buckets to be operated thereby, a controlling valve for each pump to control egress therefrom, means connecting said valves to open one when the other is closed, and a mechanism for each bucket operated by the liquid level therein for actuating said valves whereby the valve of the intaking pump will be closed and the valve of the discharging pump opened until the ascending empty bucket has been filled, substantially as described.

11. In a pump mechanism, a pair of water buckets connected in counter-balanced relation to alternately rise to filling and descend to emptying positions, a Jump connected for operation by each buc zet, a controlling valve for egress from each pump, a mechanism initiated into action by liquid level in each bucket for operating one of said valves, and a means for restoring each mechanism operated upon movement of its respective bucket, substantially as described.

12. In a pump mechanism, a pair of water buckets connected in counter-balanced relation to alternately rise to filling and descend to emptying positions, a pump connected for operation by each bucket, a controlling valve for egress from each pump, a float gravity mechanism for actuation by liquid level of each bucket to operate said controlling valves on descent of the buckets, and a means for each mechanism actuated by descent of the buckets for restoring said mechanisms to set positions subsequent to operation thereof, substantially as described.

In testimony whereof I aflix my signature in presence of two witnesses.

GUSTAV A. VVENDT.

\Vitnesses HAROLD SCANTLEBURY, EDNA BROYLES.

five cents each, by addressing the Commissioner of Patents,

Washington, D. G. 

